EP 1346471 B1 20100113 - ENVELOPE RESTORATION SCHEME FOR LINEAR HIGH-EFFICIENCY POWER AMPLIFICATION
Title (en)
ENVELOPE RESTORATION SCHEME FOR LINEAR HIGH-EFFICIENCY POWER AMPLIFICATION
Title (de)
HÜLLENWIEDERHERSTELLUNGSSCHEMA ZUR LINEAREN LEISTUNGSVERSTÄRKUNG VON HOHER LEISTUNG
Title (fr)
SYSTEME DE RESTAURATION D'ENVELOPPE POUR AMPLIFICATION LINEAIRE DE PUISSANCE A HAUT RENDEMENT
Publication
Application
Priority
- US 0144693 W 20011129
- US 75205200 A 20001229
Abstract (en)
[origin: US6522194B1] A apparatus for providing a waveform as a switched input into an output matching network of a standard class E amplifier. The apparatus includes a switch in communication with the input and the combining device receiving amplitude and phase information from the primary waveform. The combining device functions to combine the amplitude and phase information to create a control signal which is used to control the switch and create a secondary waveform for input to the matching network. In this way, an amplitude modulated waveform is amplified at high efficiency, enabling application of either all or part of the phase and/or amplitude modulation at the input of the amplifier.
IPC 8 full level
H03F 3/217 (2006.01); H03C 5/00 (2006.01)
CPC (source: EP US)
H03C 5/00 (2013.01 - EP US); H03F 3/2176 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02054587 A2 20020711; WO 02054587 A3 20030227; AT E455390 T1 20100115; AU 2002227013 A1 20020716; DE 60141085 D1 20100304; EP 1346471 A2 20030924; EP 1346471 B1 20100113; US 6522194 B1 20030218
DOCDB simple family (application)
US 0144693 W 20011129; AT 01995972 T 20011129; AU 2002227013 A 20011129; DE 60141085 T 20011129; EP 01995972 A 20011129; US 75205200 A 20001229